Liquid dispenser



Nov. 16, 1943. .w. K. DAVIS LIQUID DISiENSER' Filed March 13, 1942 2 Sheets-Sheet l INVENTOR K 0.4 ws

ATTORN YS 'E N M Y B Nov. '16, 1943.

w. K. DAVIS LIQUID DISPENSER Filed March 13, 1942 2, Sheets-Sheet 2 FIE-E.

JNVENTOR. W4 wvs K Dnws ATTORM Patented Nov. 16, 1943 UNITED 'STATE s PATENT OFFICE use in connection with the control of wood- 'infesting pests, such as termites andjother wood borers, and fungus growths,

(me of the primary objects of this invention is to provide a liquid-dispensing means which will slowly feed, as by seepage, chemicals ofthepest control type to permit wide dispersiongand' deep .penetration thereof into infested areas.

It is a further object of this invention'to pro- 1 side a drip regulator for containers of the-spout or nozzle dispensing type which will beextremely inexpensive to'manufacture, which may 'be'conveniently removed for refilling, and which will requiresubstantially no attention once fitted to such a dispensing container and-placed in posi- {tion for the :purpose intended. f

Another object 50f this invention is the provision of liquid dispensing means which may be used as an accessory to or as an assembled .part of conventional containers having a dispensing spout or nozzle, and it is 'afurther object of :the

invention to provide an accessory of a :type which feed er the liquid to be dispensed to such an extent that structural wood may readily absorb it whereby wood-infesting pests maybe repelled .and killed. 1

The numeral H indicates a conventional tin container having a threadedneck H and a dispensing nozzle 12 in threaded engagement therewith. Dispensers of this character are generally inverted, as-illustrated in Figure 4, when utilized in drip-feed operations; and for that reason, I

have shown the" container in as provided with the air-inlet control means illustrated in Figure .L. The bottom of can lilis punctured, as at 13, and a screw it having a washer I of rubber, synthetic. rubber or like material, is. inserted therein in threaded engagement with the can bottom. A'wire 16 has been peened or otherwise may be readily applied to such containers without structural alteration thereof.

Other objects of theinvention will become more apparent as this specification proceeds, and

the noveltyof the invention will be particularly pointed out in the appended claims.

In thedrawings vformingta part hereof: Figure 1 is a vertical 'sectional view through a container to which the drip regulator. of this invention has been applied.

Figure 2 is an enlarged sectional view of the drip regulator forming the subjecti'matter hereof. Figure 3 is a vertical sectional view showing a modification of the drip regulator illustrated in Figure 2.

In terms of general inclusion, the objects of this invention are attained through the use of an auxiliary spout, adapted to be fitted'within the conventional dispensing spout or nozzle'of a container, which auxiliary spout has associated therewith meansfor filtering and regulating the secured in the slot of the :head of screw [4 to provide a finger grip. Thus; when screw' M has been driven home, washer l5 effects an airtight seal -of the bottom of the container, whereas loosening of screw 14 permits entry of airinto the container in regulatable quantities. The auxiliaryspout 20 corresponds in shape to theconVentionalspout I2, and it is provided with a washer 2| cemented or otherwise secured in position 'in spaced relation to the intakeend of the spout. As will be noted from Figure l, the washer 2| is adapted to fit snugly within thecap portion of the conventional spout 12' to seal off all flow therethrough except such liquids as pass through the intake end of spout 20.

Itis important that the intake end of the flowimpeding means or regulator be thus raised above any surrounding area on which sediment is likely to collect, for obviously a coating of sediment would materially impair the efiiciency of any flow-regulating means. For example, by raising the intake end of the regulator 2i] above the bottom of the neck i I (when the container I0. is inverted as in Figure '1), sediment maybe bypassed into the neck, which, with washer 2|, will then serve as a sump.

As shown in Figure 2, I'place a filamentary tangled mass 23 of steel wool or like flow-impeding material in the auxiliary spout 20 adjacent the discharge end 22, While steel woolor like material in ball-like form is satisfactory for the purpose intended, it is possible to use other fiowimpeding means such as those hereinafter referred to.

Spent 29 is next filled with a finely sifted sand particles'25. A larger ball of steel wool or like material 26 is disposed over the intake end of the nozzle 2t, and this is covered with a fine mesh material such as the cloth 2! to form an intake head. The ends of the cloth 2! are then twisted about the nozzle 20 and cemented or otherwise secured into position.

From the foregoing description, it will be appreciated that pest-control liquids contained in the can III will flow downwardly through the can neck I I and into the cap portion of the nozzle l2 against the washer 2| and the surface of the cloth covering 21. The liquids will seep successively through the cloth 21, the steel wool ball 26, the sand 25, and the smaller steel wool ball 23; and thi succession of flow-impeding materials will act not only as a filtering means but will serve to regulate the flow of the liquid from thedischarge end 22 of spout 2Dand out through the discharge end of can spout [2. By varying the quantity and character of the steel wool balls 23 and 26 and the sand 25, adjustments may be made to meet variances in pest problems and materials to be dispensed. In dispensing pest control liquids ofthe penetrating type, it is highly desirable that the liquid be not only fed slowly but filtered to such an extentthat the pores of the structural wood being treated" may absorb such liquids; and it is clear that the subject matter hereof fills'that need.

' In Figure 4 a'typicaluse of'a dispenser of the typeembodying the invention forming the subject matter hereof is illustrated. Here both the wooden mud sill 30 and studding 33 are being upon, and may preferably be cemented to, a washer 50.- An assembly of the plug 48 and washer 50 is seated in the threaded cap portion of auxiliary spout 20 whereby plug 48 serves as an effective flow-impeding means for the liquid .insecticide and/or fungicide.

Selected forms of the invention have been shown and described herein for purposes of illustration only and, since the invention may take other forms, protection is sought according to the scope of the appended claims,

The invention claimed is:

1. A fiow regulator for liquid dispensing receptacles of the type having a unitary and detachable screw cap and discharge spout, comprising, an auxiliary spout adapted to be partly inserted within the main discharge spout, a washer fixed on the auxiliary spout for holding same in spaced relation within and sealing the intake end of the main spout, and liquid flow-impeding means carried by said auxiliary spout.

2. A flow regulator for liquid dispensing receptacles of the type having a unitary and detachable screw cap and discharge spout, comprising, an auxiliary spout for insertion within the main discharge spout, a washer fixed on the auxiliary spout for holding the same inspaced relation within the main spout with its intake end raised treated with pest-control liquids of the penetra- 5 tion type to repel attack by and kill insects of the wood borer type, as well as prevent fungus growths. An inclined bore 3| has been made in woodensill 30 to receive the spout of the dispenser can 32,v In studding 33, a diagonal bore 34 has been made toward the butt end to receive the spout of can 35. In each instance the pest control liquids will be fed slowly for deep penetration into the pores of the wood members 30 a yarn, such as cotton yarn 4B, is twisted about.

spout. i

- 1 3. A flow regulator for liquid dispensing recep-- above that of the main spout, said washer sealing the intake end of the main spout, and liquid flow-impeding means carried by said auxiliary tacles of the typehaving a unitary and detachable screw cap and discharge spout, comprising, an auxiliary spout for-insertion within the main discharge spout, a washer member carried by the auxiliary spout for holding the same in spaced relation within the main spoutwith its intake spout. I

and .through the two loops 4| and 42 of a wire 43 to form an enlarged knot or tuft which will bear against and project from the intake end of auxiliary spout 20. Additionally, one or more strands 44 of yarn 48 may be drawn downthe length of wire 43 and knotted or twisted thereabout, as at 45, to serve as a wick. In assembling this modified structure, the lower end of wire 43 is inserted.

and sand is poured into auxiliary spout 20 above the knot or twist45. The lower end of wire 43 is then pulled downwardly to'move the yarn tuft plug. 48 of a porous composition such as sand and plaster of paris is employed. The plug 48 is provided with a reduced portion 49 adapted to enter thespout Zlland the shoulderof the plug rests an auxiliaryspout for insertion'within the main discharge spout, a.- washer'closure means for the intake-end of .themain spout fixed on the auxiliary spout below its intake end, and liquid flowimpeding means carried byisa'id auxiliary spout.

,5. In a liquid dispenser, the combination of a receptacle having a threaded neck portion, a screw cap of the spout discharge type threadably engaging the neck portion of the receptacle, an

the auxiliary spout, a quantity of sand-within the auxiliary spout, and means adjacent the discharge end of the auxiliary spout to block passage of the sand but permit impeded flowof the liquids when the receptacle is inverted.

7. A flow regulator for liquid dispensing receptacles ofthe. type havinga unitary and detachcarried by the auxiliary spout for holding the same in spaced relation within the main spout,

a filamentary tangled mass at the intake end of the auxiliary spout, a meshed covering for the filamentary tangled mass, a quantity of sand within the auxiliary spout, and means adjacent the discharge end of the auxiliary spout to block passage of the sand but permit impeded flow of the liquids when the receptacle is inverted.

'WAYNE K. DAVIS. 

